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[PULL 04/11] bsd-user: Implement freebsd11_mknod, freebsd11_mknodat and
From: |
Warner Losh |
Subject: |
[PULL 04/11] bsd-user: Implement freebsd11_mknod, freebsd11_mknodat and mknodat |
Date: |
Sat, 2 Jul 2022 07:56:59 -0600 |
These implement both the old-pre INO64 mknod variations, as well as the
now current INO64 variant. Make direct syscall calls for these older
syscalls to avloid too many dependencies.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/bsd-file.h | 47 +++++++++++++++++++++++++++++++++++
bsd-user/freebsd/os-syscall.c | 13 ++++++++++
2 files changed, 60 insertions(+)
diff --git a/bsd-user/bsd-file.h b/bsd-user/bsd-file.h
index 1af79866fc6..b05d3cbb717 100644
--- a/bsd-user/bsd-file.h
+++ b/bsd-user/bsd-file.h
@@ -721,4 +721,51 @@ static abi_long do_bsd_fchmodat(abi_long arg1, abi_long
arg2,
return ret;
}
+/* pre-ino64 mknod(2) */
+static abi_long do_bsd_freebsd11_mknod(abi_long arg1, abi_long arg2, abi_long
arg3)
+{
+ abi_long ret;
+ void *p;
+
+ LOCK_PATH(p, arg1);
+ ret = get_errno(syscall(SYS_freebsd11_mknod, p, arg2, arg3));
+ UNLOCK_PATH(p, arg1);
+
+ return ret;
+}
+
+/* pre-ino64 mknodat(2) */
+static abi_long do_bsd_freebsd11_mknodat(abi_long arg1, abi_long arg2,
+ abi_long arg3, abi_long arg4)
+{
+ abi_long ret;
+ void *p;
+
+ LOCK_PATH(p, arg2);
+ ret = get_errno(syscall(SYS_freebsd11_mknodat, arg1, p, arg3, arg4));
+ UNLOCK_PATH(p, arg2);
+
+ return ret;
+}
+
+/* post-ino64 mknodat(2) */
+static abi_long do_bsd_mknodat(void *cpu_env, abi_long arg1,
+ abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
+ abi_long arg6)
+{
+ abi_long ret;
+ void *p;
+
+ LOCK_PATH(p, arg2);
+ /* 32-bit arch's use two 32 registers for 64 bit return value */
+ if (regpairs_aligned(cpu_env) != 0) {
+ ret = get_errno(mknodat(arg1, p, arg3, target_arg64(arg5, arg6)));
+ } else {
+ ret = get_errno(mknodat(arg1, p, arg3, target_arg64(arg4, arg5)));
+ }
+ UNLOCK_PATH(p, arg2);
+
+ return ret;
+}
+
#endif /* BSD_FILE_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index b33d548a4b6..d3125f340f7 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -32,6 +32,7 @@
#include "qemu/cutils.h"
#include "qemu/path.h"
#include <sys/syscall.h>
+#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/sysctl.h>
@@ -418,6 +419,18 @@ static abi_long freebsd_syscall(void *cpu_env, int num,
abi_long arg1,
ret = do_bsd_fchmodat(arg1, arg2, arg3, arg4);
break;
+ case TARGET_FREEBSD_NR_freebsd11_mknod: /* mknod(2) */
+ ret = do_bsd_freebsd11_mknod(arg1, arg2, arg3);
+ break;
+
+ case TARGET_FREEBSD_NR_freebsd11_mknodat: /* mknodat(2) */
+ ret = do_bsd_freebsd11_mknodat(arg1, arg2, arg3, arg4);
+ break;
+
+ case TARGET_FREEBSD_NR_mknodat: /* mknodat(2) */
+ ret = do_bsd_mknodat(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;
--
2.33.1
- [PULL 00/11] Bsd user syscall 2022q2b patches, Warner Losh, 2022/07/02
- [PULL 01/11] bsd-user: Implement mount, umount and nmount, Warner Losh, 2022/07/02
- [PULL 03/11] bsd-user: implement chmod, fchmod, lchmod and fchmodat, Warner Losh, 2022/07/02
- [PULL 02/11] bsd-user: Implement symlink, symlinkat, readlink and readlinkat, Warner Losh, 2022/07/02
- [PULL 04/11] bsd-user: Implement freebsd11_mknod, freebsd11_mknodat and mknodat,
Warner Losh <=
- [PULL 05/11] bsd-user: Implement chown, fchown, lchown and fchownat, Warner Losh, 2022/07/02
- [PULL 06/11] bsd-user: Implement chflags, lchflags and fchflags, Warner Losh, 2022/07/02
- [PULL 07/11] bsd-user: Implement chroot and flock, Warner Losh, 2022/07/02
- [PULL 09/11] bsd-user: Implement pathconf, lpathconf and fpathconf, Warner Losh, 2022/07/02
- [PULL 08/11] bsd-user: Implement mkfifo and mkfifoat, Warner Losh, 2022/07/02
- [PULL 11/11] bsd-user: Remove stray 'inline' from do_bsd_close, Warner Losh, 2022/07/02
- [PULL 10/11] bsd-user: Implement undelete, Warner Losh, 2022/07/02
- Re: [PULL 00/11] Bsd user syscall 2022q2b patches, Richard Henderson, 2022/07/02